Sandal sole



FIG. 1 a top view of a sandal sole,

FIG. 2 is a bottom view of a sandal sole; and,

FIG. 3 is a right side profile view of a sandal sole.

The broken lines depict portions of the sandal sole that form no part of the claimed design. 

CLAIM The ornamental design for a sandal sole, as shown and described. 